18203-36 Old 168-36 Complete Replacement Knucklehead Valve Springs Set

USA Made! KibblewhiteThis Kit Has Stock Valve Seat Pressure If Valves Stem Protrusion Is Not Excessive. The Stock Spring Pressure Provides You with a Manufacturer Like Valve Drive Train Longevity. Works Best with Stock Cam or Slightly Modified Drop in Cam. OE style replacement kit Features dual super clean chrome silicon springs; heat-treated steel base washers .415" lift seat pressure 127lb Includes steel retainers Made in the U.S.A. This Kit Includes the Following Parts,4, 18222-36 Lower Spring Collars4, 18204-36 Inner Valve Spring4, 18203-36 Outer Valve Spring4, 18221-36 Upper Spring Collar8 ,18228-36 Valve Spring Retainers Fits the Following Harley-Davidson Models1936 to 1947 Knuckleheads